作业帮若2x+3y=1004,则多项式2(3x-2y)-(x-y)+(-x+9y)=?Thank you!
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若2x+3y=1004,则多项式2(3x-2y)-(x-y)+(-x+9y)=?Thank you!
若2x+3y=1004,则多项式2(3x-2y)-(x-y)+(-x+9y)=?
Thank you!
若2x+3y=1004,则多项式2(3x-2y)-(x-y)+(-x+9y)=?Thank you!
2(3x-2y)-(x-y)+(-x+9y)
=6x-4y-x+y-x+9y
=4x+6y
=2(2x+3y)
=2*1004
=2008
ddd
2(3x-2y)-(x-y)+(-x+9y)
=6x-4y-x+y-x+9y
=4x+6y
=2(2x+3y)
=2*1004
=2008